We're dividing 97878121 by 591 
We want to figure out the number of times 97878121 can be divided by 591.

Let's proceed to step 1:
9 divided by 591 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 591

Moving on to step 2:
If we divide 97 by 591, we get 0 and a remainder of 97.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 97, we end up with 97.
Bring next digit (8) of the dividend behind the 97 and repeat the process: 978 / 591

Let's proceed to step 3:
591 goes into 978 1 times with a remainder of 387.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 591 from 978 leaves us with 387.
Include the next digit (7) from the dividend after 387, then repeat: 3877 / 591

Going ahead to step 4:
If we divide 3877 by 591, we get 6 and a remainder of 331.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 3546 from 3877 to get 331.
Fetch the next digit (8) from the dividend, attach it to 331 and continue: 3318 / 591

Advancing to step 5:
591 goes into 3318 5 times with a remainder of 363.
Write down 5 as next digit of the result. 
Result so far: 165.0
The remainder is 363 after subtracting 2955 from 3318.
Include the next digit (1) from the dividend after 363, then repeat: 3631 / 591

Advancing to step 6:
The number 591 fits into 3631 6 times, leaving a remainder of 85.
Use 6 as the next digit of our solution. 
Result so far: 1656.0
Subtracting 3546 from 3631 leaves us with 85.
Fetch the next digit (2) from the dividend, attach it to 85 and continue: 852 / 591

Let's proceed to step 7:
When dividing 852 by 591, we get 1 with a remainder of 261.
Write down 1 as next digit of the result. 
Result so far: 16561.0
Deduct 591 from 852 and we're left with 261.
Include the next digit (1) from the dividend after 261, then repeat: 2611 / 591

On to step 8:
The number 591 fits into 2611 4 times, leaving a remainder of 247.
The next digit of our result is 4. 
Result so far: 165614.0
If we take 2364 away from 2611, we end up with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

On to step 9:
If we divide 2470 by 591, we get 4 and a remainder of 106.
The number 4 becomes the next digit in our result. 
Result so far: 165614.4
Subtracting 2364 from 2470 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 10:
591 can be fit into 1060 1 times, resulting in a remainder of 469.
The next digit of our result is 1. 
Result so far: 165614.41
Deduct 591 from 1060 and we're left with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Advancing to step 11:
When dividing 4690 by 591, we get 7 with a remainder of 553.
Write down 7 as next digit of the result. 
Result so far: 165614.417
The remainder is 553 after subtracting 4137 from 4690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Step 12:
If we divide 5530 by 591, we get 9 and a remainder of 211.
Put 9 as the next digit of the answer. 
Result so far: 165614.4179
Subtract 5319 from 5530 to get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

On to step 13:
If we divide 2110 by 591, we get 3 and a remainder of 337.
Put 3 as the next digit of the answer. 
Result so far: 165614.41793
Deduct 1773 from 2110 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

On to step 14:
591 can be fit into 3370 5 times, resulting in a remainder of 415.
Record the quotient 5 as the next digit in the result. 
Result so far: 165614.417935
If we take 2955 away from 3370, we end up with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Advancing to step 15:
When dividing 4150 by 591, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 165614.4179357
Deduct 4137 from 4150 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 16:
The number 591 fits into 130 0 times, leaving a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 165614.4179357
Subtract 0 from 130 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The final outcome is 165614.4179357, with a leftover of 1.3e-07.